Banana resistant starch and its effects on constipation model mice

Area of Science:

• Food Science and Technology
• Gastroenterology
• Biochemistry

Background:

• Constipation is a prevalent gastrointestinal disorder.
• Resistant starch, a type of dietary fiber, has shown potential in modulating gut function.
• Banana resistant starch (BRS) has unique structural properties that warrant investigation for its physiological effects.

Purpose of the Study:

• To characterize the structural properties of banana resistant starch (BRS).
• To evaluate the effects of BRS on gastrointestinal transit and dejecta in a mouse model of constipation.
• To determine the optimal dosage of BRS for improving intestinal motility.

Main Methods:

• Banana resistant starch (BRS) was extracted and its physicochemical properties (crystallinity, molecular weight, particle morphology) were analyzed.
• A mouse constipation model was induced using diphenoxylate.
• Mice were gavaged with varying doses of BRS (1.0, 2.0, 4.0 g/kg body weight), and gastrointestinal transit, dejecta characteristics, body weight, and food intake were monitored.

Main Results:

• BRS particles were oval and spindly with surface cracks and pits, exhibiting a crystallinity of 23.13%.
• BRS administration at 4.0 g/kg increased gastrointestinal propulsive rate.
• BRS at 2.0 and 4.0 g/kg shortened the time to the first defecation without affecting dejecta quality, body weight, or food intake.

Conclusions:

• Banana resistant starch (BRS) effectively accelerates small intestinal movement and shortens defecation time in constipated mice.
• BRS demonstrates potential as a functional ingredient for improving intestinal motility.
• Further research is warranted to explore the therapeutic applications of BRS in managing constipation.